What is porcelain shackle insulator?
 
Porcelain shackle type insulator is one main of porcelain insulators. Shackle insulator is an insulator of generally cylindrical form. It has two or more sheds and an axial mounting hole. In early days, the shackle insulators were used as strain insulators. But now a days, they are frequently used for low voltage distribution lines, also can be used either in a horizontal position or in a vertical position.They can be directly fixed to the pole with a bolt or to the cross arm.
 
Porcelain Shackle insulator Picture:
 
Porcelain Shackle insulator types:

Type No. Height
(mm)
Width
(mm)
Hole
(mm)
Strength
(kN)
Wet Flashover voltage
(kV)
Dry Flashover voltage
(kV)
ED-2B 76 89 17.5 13 12 25
ED-2B1 76 92 18.5 13 12 25
ED-2B2 76 90 19 13 12 25
ED-2B3 76 89 21 13 12 25
ED-2C 80 80 22 13.5 12 25
E-1 180 150 26 20 27 45
E-2 150 130 26 20 23 38
R-6 80 70 18 8.9 12 15
S0.5 75 88 17 17.8 10 12